I bought this often having to tune electic guitars while not having anything to plug them into. It does this part really well. some slight disadvanteges is that the clamp does´nt open very wide so trying to use it on a classical guitar with a thick headstock is quite inpractical and might not work at all. It also does´nt have any fancy features its simpily a cilp on tuner that does the job for electric guitars and steel string acoustics.